Car-brake



(No Model.)

A. L KIRKLAND. GAR BRAKE.

1101329340. Patented NGV. s, 1885.

j. m: u 1| 1|]! III II TV I TJV ESSES UNITED STATES PATENT OFFICE.

AUSTIN L. KIRKLAND, OF PITTSBURG, PENNSYLVANIA.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 329,840, dated November3, 1885.

Application filed August 28, 1885. Serial No. 175,568.

To all whom it may concern:

Be it known that I, AUsTIN L. KIRKLAND, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inOar-Brakes, of which the following is aspecification, reference beinghad therein to the accompanying drawings.

The object of this improvement is a mechanism for operating the brakesof railroadcars in a rapid and positive manner. These results areattained by the means illustrated in the drawings herewith filed as parthereof, in which the same letters of reference denote the same parts inthe different views.

Figure l is alongitudinal vertical section of a car provided with abrake-operating mechanism embodying the features of my improvement. Fig.2 is an end View of my device, showing the same attached to a section ofthe car and axle of the truck-wheels. Fig. 3 is a longitudinal verticalsectional view representing details on an enlarged scale, and more fullyillustrating the construction and operation of the parts. Fig. 4 is asectional detail view, and Fig. 5 is a representation of one of thechain-links detached.

A is the car-frame.

A is the truck-frame.

B is the truck-wheel.

D is a sheave or grooved pulley centrally secured to the truck-wheelaxle O.

D is a sheave or grooved pulley supported in line with the sheave D byshaft 0, having bearings in hangers Dflsuitably secured to the car-frameA.

E is a cast-metal frame, suspended in the position shown by hangerscomposed of inclined arms E secured to the car-frame and made integralwith or bolted, as shown at c, to oblong square frames E in which theframe E is arranged to slide, as hereinafter set forth.

F F are rollers supported by bolts F, having bearings in blocks f, asshown in Fig. 3, which slide in slots f of the frame E when the latteris adjusted, fora purpose to be presently explained.

G is an endless chain suspended loosely around the pulley D from thepulley D. The

inner or bearing surface of the links of the (No model.)

chain G are curved, as shown at 9, Figs. 3 and 4, to correspond exactlywith their bearings in the pulleys D D.

O is a chain to be connected from the shaft of the pulley D, with theordinary brake mechanism, by means of which the brake-shoes are setagainst the car-wheels.

E E are rods connected with the slide-frame E, substantially in themanner shown at c, Fig. 3, and thence with a lever, E, at the end of thecar.

E is a ratchetplate secured to the platform of the car adjacent to thelever E, which is to be provided with a pawl for engaging with thedetents of the ratchetplate as occasion may require.

S represents spiral springs firmly secured to the frame E by set-screwsS, and suitably connected thence with the sliding bearings f of therollers F. When the lever E is moved in one direction or the other, theslide-frame E will be correspondingly adj usted,and one or the other ofthe rollers F F will engage with and tighten the chain G, which willcause the pulley D to turn, and by winding the chain 0 aroundzits shaft0 thus make the force involved in the motion of the car or train applythe brake-shoes to the car-wheels in a rapid and positive manner andwith much greater effect than is possible with the ordinary handoperatedbrakes.

By means of the chain H on the rod E the mechanism may be connected withand made to operate the brakes on the adjoining car, and then the brakeson more than one car can be operated by the lever E Having explained theconstruction and operation of my improvement, what I claim as new, anddesire to secure by Letters Patent, 1s

The frame E, provided with rollers FF, the pulleys D D, chain G, andchain 0, arranged to operate the car-brakes, substantially as specified,for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

AUSTIN L. KIRKLAND.

Witnesses:

GEORGE MARS, R. G. RANKIN.

